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PostPosted: Tue Jan 25, 2022 6:55 pm 
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Real Name: Joseph
YouTube Username: VintageCollections
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07VFDInLCD wrote: *
Vintagecollections wrote: *
It’s a Federal 20. Has to be. I own a model 7, the rotor and stator are identical except it’s an 8 port rather than 12.
Vintagecollections wrote: *
My Federal:
In the picture you posted, the vanes on the rotor are vastly different. The ones on your Federal, when viewed horizontally from the side, are straight. The ones on the mystery siren have an exponential curve.

Federal vs mystery siren.png

Federal vs mystery siren comparison.png



Hm. Didn’t totally catch that. It still seems to be federal, I do also see resemblance in the stator mounts, where they bolt on and have the distinct brackets like on my type 7, alike the base on mine (where the 2nd stator on your Uncle’s attaches. Also, I found a photo of a rusty model 20 which is near identical (if not identical) to your Uncle’s one:


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PostPosted: Tue Jan 25, 2022 6:59 pm 
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Real Name: Joseph
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Seems like it to me, but I honestly don’t know now.


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PostPosted: Tue Jan 25, 2022 9:27 pm 
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Vintagecollections wrote: *
Hm. Didn’t totally catch that. It still seems to be federal, I do also see resemblance in the stator mounts, where they bolt on and have the distinct brackets like on my type 7, alike the base on mine (where the 2nd stator on your Uncle’s attaches. Also, I found a photo of a rusty model 20 which is near identical (if not identical) to your Uncle’s one:
Good point. One thing that would confirm if this has Federal Electric / Federal Signal parts in it is a clear picture of the siren without the outer shrouds on. The ID tag would also be a good indicator, but unfortunately it seems to have long been unreadable.

Oh, and I'm not the dude with the siren. Just a fellow Siren Board member interested in this case.

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PostPosted: Fri Mar 25, 2022 5:51 pm 
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I'm looking at this because another military vehicle collector almost bought this exact siren - without knowing about the rotor damage! I was doing some research on this unit because I had no idea what it was, so I came here and found this thread. It seems that no one here knows what this siren is for sure either!

I do believe that the motor tag is a GE tag. It looks a lot like this one, and I can faintly see the GE logo in the middle of it:

[ img ]

I'd think a brass wire brush might clean that tag up a little so we can see at least what the motor details are. I'm not sure where you'd find another rotor, or maybe swap the rotor with something that roughly fits.

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